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DA- K6 Fund Data

Fundamentals of Data structures

QuestionAnswer
What is a Tuple? • an immutable, ordered collection of elements. • It is similar to a list, but unlike lists, be modified
What are the characteristics of Dictionaries? • to store data in key-value pairs. • similar to a real-life dictionary where you look up a word (key) to get its meaning (value) • Each key must be unique and immutable (e.g., string, number, or tuple). • Values can be of any data type and don’t need to be unique. • Very efficient for looking up data by key.
What are the features of Stacks? • a linear data structure follows the Last In, First Out (LIFO) principle • elements are added (pushed) and removed (popped) from the same end • Think of it like a stack of plates: you add or remove plates from the top only.
Can you outline what a Database is? A database is an organized collection of data A database allows users to store, retrieve, manage, and manipulate information efficiently.
Can you describe what a Relational Database is? A Relational Database System (RDBS) is a type of database that organizes data into tables with rows and columns, following a structured schema.
 



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